Question

【题目】My father was born in 1980, and we’re planning to celebrate his f________ birthday next week.

Answer 1

【答案】fortieth

【解析】

句意：我父亲生于1980年，我们计划下周庆祝他四十岁生日。

空格处所给首字母为f。根据句中My father was born in 1980提示，父亲今年40岁，故空格处应填入意为“第四十”的序数词fortieth修饰名词birthday。故答案为fortieth。